<?hh // strict
/**
 * Copyright (c) 2014, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the "hack" directory of this source tree.
 *
 *
 */

class A {

  public function foo(): void {
    if ($this instanceof B) {
      $this->bar();
    }
  }
}

class B {
  public function bar(): void {}
}
